Viewing Reports and Logs : Viewing Bandwidth Optimization Reports
  
Viewing Bandwidth Optimization Reports
The Bandwidth Optimization report summarizes the overall inbound and outbound bandwidth improvements on your network. You can create reports according to the time period, port, and traffic direction of your choice.
For details about the report format, see Overview.
The Bandwidth Optimization report includes these statistics describing bandwidth activity for the time period you specify.
Data Series
Description
Data Reduction %
Displays the peak and total decrease of data transmitted over the WAN, according to this calculation:
(Data In – Data Out)/(Data In)
Displays the capacity increase x-factor below the peak and total data reduction percentages.
WAN and LAN Throughput
Depending on which direction you select, specifies one of these traffic flows:
•  Bi-Directional - traffic flowing in both directions
•  WAN-to-LAN - inbound traffic flowing from the WAN to the LAN
•  LAN-to-WAN - outbound traffic flowing from the LAN to the WAN
The navigator shadows the data reduction series.
What This Report Tells You
The Bandwidth Optimization report answers these questions:
•  How much data reduction has occurred?
•  How much data was removed from the WAN link?
•  How much data was sent/received on the LAN/WAN ports?
About Report Graphs
Use the mouse to hover over a specific data point to see what the y values and exact time stamp were in relation to peaks.
About Report Data
The Riverbed system reports on performance for periods up to one month. Due to performance and disk space considerations, the display granularity decreases with time passed since the data was sampled with a granularity of 5 minutes for the day, 1 hour for the last week, and 2 hours for the rest of the month.
To view a Bandwidth Optimization report
1. Choose Reports > Optimization: Bandwidth Optimization to display the Bandwidth Optimization page.
Figure: Bandwidth Optimization Page
2. Use the controls to customize the report as described in this table.
Control
Description
Time interval
Select a report time interval of 5 minutes (5m), 1 hour (1h), 1 week (1w), All, or type a custom date. All includes statistics for the past 30 days.
Time intervals that don’t apply to a particular report are dimmed.
For a custom time interval, enter the start time and end time using the format YYYY/MM/DD HH:MM:SS.
Because the system aggregates data on the hour, request hourly time intervals. For example, setting a time interval to 08:30:00 to 09:30:00 from 2 days ago doesn’t create a data display, whereas setting a time interval to 08:00:00 to 09:00:00 from 2 days ago will display data.
When you request a custom time interval to view data beyond the aggregated granularity, the data is not visible because the system is no longer storing the data. For example, these custom time intervals don’t return data because the system automatically aggregates data older than 7 days into 2-hour data points:
•  Setting a 1-hour time period that occurred 2 weeks ago.
•  Setting a 75-minute time period that occurred more than 1 week ago.
You can view the newest data and see data points as they’re added to the chart dynamically. To display the newest data, click Show newest data.
Port
Select a port or All to select all ports from the drop-down list.
Direction
Select a traffic direction (Bi-Directional, WAN to LAN, or LAN to WAN) from the drop-down list.